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Add 20/45 and 42/6

1st number: 20/45, 2nd number: 7 0/6

20/45 + 42/6 is 67/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 6 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    20/45 = 20 × 2/45 × 2 = 40/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    42/6 = 42 × 15/6 × 15 = 630/90
  4. Add the two like fractions:
    40/90 + 630/90 = 40 + 630/90 = 670/90
  5. 670/90 simplified gives 67/9
  6. So, 20/45 + 42/6 = 67/9
    In mixed form: 74/9

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